PHP preg_replace_callback catch more than one occurance in line

Question

I search for custom HTML tags with:

$match = preg_replace_callback("/<tag>(.*)<tag>/", function ($key) {
    $result = getTxt($key[1]);

    return $result;
}, $buffer);

It works when input is:

Abc <tag>1<tag> efg

But why it returns null on:

Abc <tag>2<tag> ef <tag>3<tag> h

I've tried to group nongreedy ending tag: /$tag(.*)($tag?)/ with same result.

Since when was a (?:X|H)TML tag ever closed by another opening tag? — tenub
– tenub, Commented May 5, 2014 at 20:13

kero · Accepted Answer · 2014-05-05 20:00:49Z

2

You need to make the .* non greedy via .*?

/<tag>(.*?)<tag>/

Say $tag is <tag>, that means $tag? becomes <tag>? which captures <tag and <tag>

answered May 5, 2014 at 20:00

kero

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